What is in this article?:
• There’s always something new and different in the world of crop insects.
• There are sporadic and incidental pests and then there are others that can be counted on to cause problems every year.
AUBURN UNIVERSITY EXTENSION Entomologist Ron Smith, shown here during a field day this past summer, says there are always new things to talk about in the world of crop insects.
Several insecticide options
Several insecticides give effective control of kudzu bugs, he says, including pyrethroids. “If you spray too early they will come back on you,” notes Smith.
The red-banded stinkbug is a native of South America and was first found in Louisiana, he says. It can be damaging on soybeans.
“They’re more difficult to control than the green stinkbug, and we’ve seen them near the Gulf Coast and as far north as Prattville, Ala. They are susceptible to cold weather, so they should stay a problem in the southern part of the state.”
Caterpillar pests of soybeans include soybean loopers, green clover worms and velvetbean caterpillars, says Smith.
“Last year we had a mixed population throughout the state with all three species. If you’ve got any loopers in the population, you have to switch chemistry. The pyrethroids do a very good job on clover worms and velvetbean cateripillars. If you’ve got loopers, you’ll have to go with a different chemistry.”
Cowpea aphids were seen this past year in peanuts, he says, and imidacloprid chemistry is recommended for their control. It was the first time aphids had been observed feeding on peanut pegs in Alabama.
“Fall armyworms have been with us on pasture, hay and turf for three consecutive years. We’re not doing a good job of detecting them as early as we need to.
“They will feed on soybeans and peanuts, but they don’t like cotton. You’ll need to look at pastures on a schedule with a sweep net. They will stay with you from early summer up until frost.”
The future of Meymik 15G, the aldicarb replacement for Temik, remains uncertain, says Smith.
“The active ingredient is still waiting in China for a formulating plant to be approved, funded and constructed in south Georgia. So, there will be no Temik replacement for 2013, likely not in 2014, and maybe never.”
Smith adds that methyl parathion will no longer be available after the 2013 season.